R. SANTHI; M. RAMESHKUMAR. On pre-\(\mathcal{I}_s\)-open sets and pre-\( \mathcal{I}_s\)-continuous functions . Malaya Journal of Matematik, India, v. 2, n. 03, p. 315–321, 2014. DOI: 10.26637/mjm203/019. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/423. Acesso em: 22 nov. 2024.